Y \ X
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
9760
9759
9758
9757
9756
9755
9754
9753
9752
9751
9750
9749
9748
9747
9746
9745
9744
9743
9742
9741
9740